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データを開く
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基本情報
| 登録情報 | ![]() | |||||||||
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| タイトル | Tau filaments seeded by AD homogenate using 0N3R C322A | |||||||||
マップデータ | Sharpened map | |||||||||
試料 |
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キーワード | MAPT / Tau / Alzheimer's Disease / RT-QuiC / PROTEIN FIBRIL | |||||||||
| 機能・相同性 | 機能・相同性情報plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / tubulin complex / positive regulation of protein localization to synapse / phosphatidylinositol bisphosphate binding / generation of neurons ...plus-end-directed organelle transport along microtubule / histone-dependent DNA binding / negative regulation of protein localization to mitochondrion / neurofibrillary tangle / microtubule lateral binding / axonal transport / tubulin complex / positive regulation of protein localization to synapse / phosphatidylinositol bisphosphate binding / generation of neurons / rRNA metabolic process / axonal transport of mitochondrion / regulation of mitochondrial fission / axon development / regulation of microtubule-based movement / regulation of chromosome organization / intracellular distribution of mitochondria / central nervous system neuron development / minor groove of adenine-thymine-rich DNA binding / lipoprotein particle binding / microtubule polymerization / negative regulation of mitochondrial membrane potential / regulation of microtubule polymerization / dynactin binding / apolipoprotein binding / protein polymerization / main axon / axolemma / Caspase-mediated cleavage of cytoskeletal proteins / regulation of microtubule polymerization or depolymerization / negative regulation of mitochondrial fission / glial cell projection / neurofibrillary tangle assembly / positive regulation of axon extension / regulation of cellular response to heat / positive regulation of microtubule polymerization / Activation of AMPK downstream of NMDARs / positive regulation of protein localization / positive regulation of superoxide anion generation / cellular response to brain-derived neurotrophic factor stimulus / regulation of long-term synaptic depression / supramolecular fiber organization / cytoplasmic microtubule organization / regulation of calcium-mediated signaling / somatodendritic compartment / axon cytoplasm / synapse assembly / astrocyte activation / phosphatidylinositol binding / nuclear periphery / enzyme inhibitor activity / protein phosphatase 2A binding / stress granule assembly / regulation of microtubule cytoskeleton organization / regulation of autophagy / cellular response to reactive oxygen species / microglial cell activation / cellular response to nerve growth factor stimulus / Hsp90 protein binding / protein homooligomerization / SH3 domain binding / PKR-mediated signaling / regulation of synaptic plasticity / synapse organization / response to lead ion / microtubule cytoskeleton organization / memory / cytoplasmic ribonucleoprotein granule / neuron projection development / cell-cell signaling / single-stranded DNA binding / cellular response to heat / protein-folding chaperone binding / growth cone / microtubule cytoskeleton / actin binding / cell body / double-stranded DNA binding / microtubule binding / sequence-specific DNA binding / amyloid fibril formation / dendritic spine / microtubule / protein-macromolecule adaptor activity / learning or memory / neuron projection / membrane raft / negative regulation of gene expression / axon / neuronal cell body / DNA damage response / dendrite / protein kinase binding / enzyme binding / mitochondrion / DNA binding / RNA binding / extracellular region / identical protein binding / nucleus 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) | |||||||||
| 手法 | らせん対称体再構成法 / クライオ電子顕微鏡法 / 解像度: 2.8 Å | |||||||||
データ登録者 | Lovestam S / Scheres HWS | |||||||||
| 資金援助 | 英国, 1件
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引用 | ジャーナル: FEBS Lett / 年: 2025タイトル: Serial amplification of tau filaments using Alzheimer's brain homogenates and C322A or C322S recombinant tau. 著者: Alessia Santambrogio / Sofia Lövestam / Michael A Metrick / Thomas Löhr / Peifeng Xu / Nicholas C T Gallagher / Bernardino Ghetti / Byron Caughey / Sjors H W Scheres / Michele Vendruscolo / ![]() 要旨: The assembly of tau into amyloid filaments is a hallmark of Alzheimer's disease (AD) and other tauopathies. Cryo-EM revealed the existence of disease-specific tau folds, which are challenging to ...The assembly of tau into amyloid filaments is a hallmark of Alzheimer's disease (AD) and other tauopathies. Cryo-EM revealed the existence of disease-specific tau folds, which are challenging to replicate in vitro. We studied three full-length recombinant 0N3R tau forms (the wild-type and the C322A and C322S variants) using an RT-QuIC assay with brain homogenate seeding. C322A tau formed filaments resembling AD paired helical filaments (PHFs) but with a more open C-shaped core. C322S tau yielded structurally distinct filaments with an ordered C-terminal region. Both mutants seeded further aggregation, whereas the wild-type showed poor reproducibility and mainly unfolded aggregates. These results highlight the importance of optimised conditions to produce disease-relevant tau filaments and aid the development of targeted therapies. Impact statement We investigated the seeded assembly of 0N3R tau and its two mutational variants C322A and C322S, using Alzheimer's disease brain homogenates in a real-time quaking-induced conversion (RT-QuIC) assay. The C322A variant formed filaments partially resembling the AD PHF structure, showing the importance of optimised conditions to produce disease-relevant tau filaments. | |||||||||
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_53527.map.gz | 47.1 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-53527-v30.xml emd-53527.xml | 21.6 KB 21.6 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_53527_fsc.xml | 13.6 KB | 表示 | FSCデータファイル |
| 画像 | emd_53527.png | 71.5 KB | ||
| Filedesc metadata | emd-53527.cif.gz | 5.9 KB | ||
| その他 | emd_53527_additional_1.map.gz emd_53527_half_map_1.map.gz emd_53527_half_map_2.map.gz | 200.6 MB 171.3 MB 171.3 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-53527 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-53527 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9r2fMC ![]() 9r2hC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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| 「今月の分子」の関連する項目 |
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マップ
| ファイル | ダウンロード / ファイル: emd_53527.map.gz / 形式: CCP4 / 大きさ: 216 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 注釈 | Sharpened map | ||||||||||||||||||||||||||||||||||||
| 投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
| ボクセルのサイズ | X=Y=Z: 0.824 Å | ||||||||||||||||||||||||||||||||||||
| 密度 |
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
-追加マップ: Unsharpened map
| ファイル | emd_53527_additional_1.map | ||||||||||||
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| 注釈 | Unsharpened map | ||||||||||||
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| 密度ヒストグラム |
-ハーフマップ: Half map 1
| ファイル | emd_53527_half_map_1.map | ||||||||||||
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| 注釈 | Half map 1 | ||||||||||||
| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: Half map 2
| ファイル | emd_53527_half_map_2.map | ||||||||||||
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| 注釈 | Half map 2 | ||||||||||||
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| 密度ヒストグラム |
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試料の構成要素
-全体 : Microtubule associate tau protein assembled into an amyloid filament
| 全体 | 名称: Microtubule associate tau protein assembled into an amyloid filament |
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| 要素 |
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-超分子 #1: Microtubule associate tau protein assembled into an amyloid filament
| 超分子 | 名称: Microtubule associate tau protein assembled into an amyloid filament タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: Isoform Fetal-tau of Microtubule-associated protein tau
| 分子 | 名称: Isoform Fetal-tau of Microtubule-associated protein tau タイプ: protein_or_peptide / ID: 1 / コピー数: 6 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 7.808945 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: QIVYKPVDLS KVTSKAGSLG NIHHKPGGGQ VEVKSEKLDF KDRVQSKIGS LDNITHVPGG GNKKIETHKL TF UniProtKB: Microtubule-associated protein tau |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | らせん対称体再構成法 |
| 試料の集合状態 | filament |
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試料調製
| 緩衝液 | pH: 7.2 |
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| グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / メッシュ: 200 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY |
| 凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / 装置: FEI VITROBOT MARK III |
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電子顕微鏡法
| 顕微鏡 | TFS KRIOS |
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| 撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 平均電子線量: 40.0 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 3.0 µm / 最小 デフォーカス(公称値): 0.5 µm |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
ムービー
コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
英国, 1件
引用








Z (Sec.)
Y (Row.)
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解析
FIELD EMISSION GUN

